Valve.



No. 844,307. PATENTED TBB. 12, 1907.

P. H. HARMER.

VALVE.

APPLIcATxoN FILED Dnc. 17. 190s.

2 MEETS-SHEET 1.

MC Wm" l TTORNEY.

ms Hormis Fermes co., WASHINGTON, o. c.

Y PATEN'IBD FEB. l2, 1907. F. H. HARMER.

VALVE.

APPLICATION HLBD D110. 1'1. 1906.

2 SHEETS-SHEET 2.

BY A l ,-fl'lTORNEf.

yIN VEN TOR 'me Nonms PETERS co., wAsHmanm. n. c4

. ber withthe valve in position UNTTED sTnTEs PATENT OFFICE.

CHALMERS COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF NEW JERSEY.

VALVE.

Patented Feb. 12, 1907.

Y Application filed December 17, 1906. Serial No. 348,160-

To all whom it may concern,.-

Be it known that I, FEEDEErcx H. HAE- MER, a citizen of theUnited States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a certain. new and useful Valve, of which the following is a specification.

This invention relates to valves for controlling the flow of fluids under pressure; and the purpose of the invention is to provide a cheap compact valve which consists of `but. few parts vand which provides amplebearingsurfaces where the movable parts are subjected to frictional contact, so that the parts may remain appreciably true to size for a long period, so that the valve will retain its usefulness for a long periodA without attention or the replacing of parts. 4

In the drawings which accompany this specificationl and form a part Vthereof and on whichthe sarne'referencev characters are used to designate the same elements wherever they may appear in thel several views, Figure 1 represents a vertical elevation' of a valve embodying this invention, parts of the same being shown in section. Fig. 2 represents a plan view of the seat member, and Fig. 3 represents a perspective view of the seat memthereon.

Referring to the drawings, the numeral 1 represents a member adapted to be secured to any suitable support by the perforated lugs 2, through the perforations of which are adapted to be passed screws or bolts. The member 1 is provided with passages or ports 3, 4, and 5, with which, respectively, are adapted to be connected the pipes 6, 7, and 8. The ports 3, 4, and'5 extend completely through said member communicate with ports 9, 10, and 11 in a seat member 12, which is adapted to be seated upon the member 1 and make a fluid-tight contact therewith, either by careful fitting of j the adjacent parts of said members or by washers or packing material., as 13. ports 9, 10, and 11 extend through the seat member 12. Seated upon the seat member 12 is the casing 14, which is in the form of a hollow shell and is secured against the seat member 12 by a fluid-tight joint either by the parts being accurately fitted together or by the use of washers or any suitable packing material. Casing 14 is provided with a projection l5, which is bored to receive a rota- 1 'and are adapted to v table stem 16, which is fitted iiuid-tight into said bore in any suitable manner, as by grinding a projection 17 on said stem in engagement with a part 18 of said bore. To the outstanding end of the stem 16 is secure the operating-handle 19, provided with a spring-backed catch 20, which is adapted to cooperate with a stationary part, preferably of the projection 15, to retain the handle 19.v and the valve which it controls in any predetermined position.'

The seat memberf'12 is provided Within the cavity of the casing 14 with a valve-seat 21', upon which the valve 22 is adapted to be reciprocated, suitable guides provided between which said valve slides and by which its motion in a right line is assured. This valve 22 is essentially of the common D- slide form having a'cavity 25 in one surface, which, however, does not open through the sides of said valve, as clearly shown by Figs.. 1 and 3, the length of this cavity being such that when the valve is moved to its proper be placed 1n communication each with the other through said cavity 25. The surface of said valve opposite that containing cavity 25 is provided with the projections 26 and 27, between which is adapted to reciprocate the slidable block 28, the line of movement of said block being at right angles to the line of movement of the valve 22. This block 28 is provided with an aperture, preferably cylindrical in form, in which is ladapted to be seated a cylindrical pin 29, secured to the stem 16 and eccentric to the axis of said stem.

The ports 10 and 11 open through the seat member 12 directly in the line of travel of the valve 22 and are adapted to be entirely covered by said valve, so that there is no communication between said ports and the interior of the casing 14, this arrangement being clearly shown by Figs. 1, 2, and 3 of the drawings.

e The port 9 in the seat member 12 does not open through said member in line with the travel of the valve 22; but in the specific instance shown it is branched within said seat member 12, the two branches 30 and 31 opening within the casing 14 on opposite sides of the seat f or the valve 22.

The numerals 32 and 33 designate lugs upon the seat member 12, which' lugs are 'apertured and are adapted to aline with simi- 23 and 24 being.

position over ports 10 and 11 said ports will- FREDERICK I-I. IIARMER, OF MIL I AUKEE, WISCONSIN, ASSIGNOR TO ALLIS-4 ICO , lar apertured lugs, as 34, upon the casing" 14 y @der and similar lugs upon the member 1, bolts being passed through the apertures of the several lugs to retain the parts in their assembled relation.

The numeral represents a screw which closes a screw-threaded aperture, through which oil may be introduced for lubricating the movable parts of the valve.

The valve-seat face of the seat-member 12 is depressed at the periphery, as at 41, in orthat the ends of the valve at its limits yof travel may project thereover, and thus prevent the valve Wearing into its seat and forming shoulders.

The port 11, Where it opens through the seat of the valve 22, is preferably of triangular shape, as clearly shown by liigs. 2 and 3, so that the aperture of said port can be controlled with great accuracy and certainty.

While this valve is adapted to control the y, iiow of any Huid under pressure, itis especia'lly adapted to control the iiow of air under z pressure in order to admit it to a motor and then to permit it to exhaust therefrom; and in this connection it may be stated that this valve is Well adapted for use as an engineers valve on vehicles and trains where brakes are operated by air under pressure.

\ The operation of the device is as followsf The pipe 6 being in communication with a fluid under pressure the fluid under pressure passes by way of pipe 6, port 9, and branches 30 and 31 to the interior of the casing 14, and with the position of the valve as shown by F ig. 1 it Wouldalso pass through the port 11 and pipe 8 to the motor or brake-cylinder until the pressures would be equalized throughout the communicating parts of the system. If now the valve ybe moved to the left, (see Fig. 1,) so as to bring port 11 into communication with port 10 through the cavity 25, then the fluid under pressure in the motor or er relation the fluidcan pass port 10, and to some other necessity of springsor other devices for keepingit on its seat. XVhat I claim i`s- 1. The combination vided with ports, of a against said seat, said with guides to restrain valve member, said valve member being provided withy guides disposed at an angle with respect to the guides upon said valve-seat, a stem provided with a pin eccentric to the axis thereof, a block adapted-to move between the guides on said valve member, said block being provided with an aperture adapted'k to receive said pin.

2. The combination with a valve-seat provided with ports, ofarectangular valve member adapted to control said ports, guides for compelling said valve member to move in a with a valve-seat provalve member resting seat being provided v right line, a valve-stem provided with a pin disposed eccentrically to the'axis of said stem, a rectangular block provided with an `aperture adapted to receive said pin, said valve member being provided with guides disposed at right angles with respect to theguides on the movement of saidl the valve-seat, said guides being adapted to restrain the right line.

In testimony whereof I aiiix my signature in the presence of two Witnesses.

FREDERICK H. HARMER. Witnesses:

FRANK E. DENNETT, JOHN C. RENNIE. a

movement of said block to a 

